Answer:
The answer is A. Mandible
Step-by-step explanation:
- Out of all the facial and cranial bones, the mandible is the largest and strongest one.
- It constitutes the lower part of the jaw, contains the lower teeth and aids chewing.
- Ribs are 24 bones that cover and protect the chest cavity that includes the heart and lungs.
- Sternum or the breastbone is a long bone located at the front of the rib cage that protects vital organs such as heart and lungs as well major blood vessels.
- The vertebral column constitutes 33 small bones or vertebra that protect the spinal cord.